Cultivator-tooth and connection.



D. W. MARTIN.

GULTIVATOR TOOTH AND CONNECTION.

APPLICATION FILED JULY 7, 1911.

1,034,474. Pa'tented Aug. 6,1912.

ln'ventor Attorneys nib.

DAVID W. MARTIN, OF MOUNT AIRY, MARYLAND.

CULTIVATOR-TOOTH AND CON N EGTION.

Specification of Letters Patent.

Application filed July 7, 1911.

Patented Aug. 6, 1912. Serial No. 637,279.

To all whom it may concern:

Be it known that I, DAVID W. MARTIN, a citizen of the United States,residing at Mount Airy, in the county of Carroll and State of Maryland,have invented a new and useful Cultivator-Tooth and Connection, of whichthe followingis a specification.

One object of the present invention is, to provide an attachment for acorn planter, which attachment comprises a furrow opener, yieldinglysupported in a novel manner, thereby to receive the thrust of anobstruction of any sort, encountered by the furrow opener. a

A further object of the invention is to improve generally, and toincrease the chiciency'of, devices of the type to which the presentinvention appertains.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without 'departing from the spirit of the invention.

In the accompanying drawings, forming a part of this application,Figure1' shows the invention in side elevation; Fig. 2 is a perspective of theshare lever; Fig. 3 is a detail perspective of an element whereby thelower end of the spring which receives a thrust of the share, issupported; Fig. 4 is a detail perspective of the hanger which supportsthe share; Fig. 5 is a fragmental rear elevation of the springcontrolled lever, shown in Fig. 1, together with attendant parts; Fig. 6is a perspective of the cap which rests upon the upper end of the sharelever; and Fig. 7 is a transverse section of the cap shown-in Fig.6,'and-of the share lever with which the cap is assembled.

In carrying out the invention there is provided as a primary andfundamental element, a supporting frame 1, which may be of any desiredform. Projecting forwardly from the frame 1 and attached thereto in anydesired manner, is a supporting bar 6, carrying the tongue 7 upon whichis pivoted, as usual, the doubletree 8.

A hanger, denoted generally by the numeral 9 is provided, the upper endof the hanger 9 being arched, to form a goose neck 90, extended abovethe frame 1, for a purpose to be described hereinafter, the goose neck90 branching at its rear end, to form arms 10, whereby the hanger 9 isconnected directly to the frame 1. Intermediate the ends of the hanger9, there is an opening 11, seen in Fig. 4, and adapted to receive apivot member 12, shown in Fig. 1, upon which pivot member is fulcrumed alever 14:, intermediate its ends, the lever 14: being a two-partstructure, as shown in Fig. 7, the constituent elements of the leverlying upon opposite sides of the hanger 9. The lever la is curved, andcomprises, as seen most clearly in Fig. 1, a relatively long segment,disposed substantially vertically, and in front of the hanger 9, and arelatively short segment, extended to the rear of the hanger 9 in asubstantially horizontal position.

Through the lower end of the lever 1 1 is extended a pivot element 15,carrying the upper ends of links 16, the lower ends of which areprovided with openings, adapted to receive, pivotally, lugs 17,outstanding laterally from the arms of a U-shaped standard 18, theoutline of which is shown most clearly in Fig. 2. Cotter pins or thelike, inserted through the lugs 17, serve to maintain the links 16 uponthe lugs 17. Intermediate its ends, as shown at 19, the share lever 18is bent downwardly, so that its forward end will be positioned properlyto receive the share 44. The share lever 18 is equipped, adjacent itsangle, with open ings 20, adapted to receive a pin 21 which pin,entering an opening 21 in the lower end of the hanger 9, constitutes ameans whereby the share lever 18 is pivotally assembled with the lowerend of the hanger. This pin carries, likewise, a clevis 22, to which isconnected one end of a flexible element, preferably a chain 23, theupper end of which is secured to the doubletree 8.

The constituent portions of the lever 14 are connected, to the rear ofthe hanger 9, by means of a cap 24, shown most clearly in Fig. 6, and ofU'shape. The arms of the cap 24 embrace the sides of the lever 14, andin the arms of the cap, there are spaced openings 240, through which,and through the rear end of the lever 14, extend securing elements 26.The upper portion of the cap 24 is equipped with a pair of depend ingribs 241, adapted to register between the constituent portions of thelever 14, as clearly shown in Fig. 7. There is an opening 242 in the topof the cap 24, which opening receives, slidably, a rod 25, extendeddownwardly between the securing members 26. The rod 25 is carrieddownwardly, through an opening 27, formed in the end of an arm 28,having ears 29, in which there are openings 30, adapt-ed to receive aconnecting element 31, extended through an opening 31 in the hanger 9.In order to prevent the arm 28 from having downward movement upon thearm 9, the ears 29 are connected by a shoulder 32 which is adapted toengage the rear edge of the hanger 9. The lower end of the rod 25 issurrounded by a washer 33 and a pin 34 is inserted transversely throughthe rod 25, below the washer 33, the pin 34 resting upon the upper edgeof the arm 28, to prevent a downward movement of the rod 25 therein. Acompression spring 35 surrounds the rod 25, the spring abutting at itslower end against the washer 33, the upper end of the spring abuttingagainst the lower edge of the rear end of the lever 14.

Noting particularly Fig. 1 of the drawings, it will be understood thatas the machine is drawn forwardly over the ground, the furrow opener orshare 44 will exercise its obvious function, it is to be observed thatthe thrust against the share 44 will serve to tilt the share, and theshare lever 18 in the direction of the arrow X in Fig. 1, the sharelever exerting an upward thrust, through the medium of the links 16,against the lower end of the lever 14, the upper end of which will bedepressed, putting the spring 35 under tension, the spring thus servingto support the share 44 yieldingly.

It frequently happens that a heavier share 44 is required, the spring35, and its accessory parts, being increased in size accordingly. Owingto the fact that the hanger 9 is equipped with the goose neck 90, theparts which the hanger 9 carries, may be increased in size accordingly.

Having thus described the invention, what is claimed is 1. In a deviceof the class described, a frame; a hanger fixed to and depending fromthe frame; a lever fulcrumed intermediate its ends upon the hanger andextended across the hanger, the lever consisting of spaced parts; anarched cap inclosing said parts, to the rear of the hanger, and havingdepending ribs adapted to en gage between the constituent parts of thelever; a rod mounted to slide in the cap; an arm connected with thehanger and rearwardly extended therefrom, the arm having an openingadapted to receive the rod; means engaging the rod and the arm toprevent a downward movement of the rod therein; compression spring surrounding the rod and bearing at its lower end against the arm, the upperend of the spring bearing against the rear end of the lever; a linkextended across the hanger and pivotallyconnected at its upper end tothe lower end of the lever; a share holder fulcrumed intermedate itsends upon the lower end of the hanger and pivotally connected atits rearend with the rear, lower end of the link; and a share carried by theshare holder.

2. In a device of the class described, a frame; a hanger dependingtherefrom; a share-holder fulcrumed intermediate ends upon the hanger; ashare carried by one end of the share-holder; and resilient means forconnecting the other end of the share-holder with the hanger.

3. In a device of the class described, a share-holder fashioned from abar of equal width throughout, the bar being bent into U-form to fashionarms, the arms being bent to define an angle in the share-holder, therebeing lugs outstanding from the arms; a hanger across. which the armsextend, and to which the angle of the shareholder is pivoted; platesconnected with the lugs and extended across the hanger; a two-partleverextended across the hanger and pivoted in its intermediate portion tothe hanger, one end of the lever being connected with the links; anarched cap connecting the parts of the lever, adjacent the other end ofthe lever; an arm secured to the hanger, below the pivotal mounting ofthe lever; and aspring operatively connected with the last mentioned armand with the arched cap.

4. In a device of the class described, a frame; a hanger including astraight portion depending from the frame; a lever pivoted to thestraight portion of the hanger and including an approximately verticalsegment located in front of, and approximately parallel to, the straightportion of the hanger, and an approximately horizontal segment extendedacross the hanger, t0 the rear of the hanger; an arm secured to thehanger, below the pivotal mounting of the lever, the arm projectingrearwardly from the hanger; a compression spring located to the rear ofthe hanger and interit-s posed between the rear end of the lever and Intestimony that I claim the foregoing said arms; a share-holder pivotallyconas my own, I have hereto aflixed my signected with the lower end ofthe hanger; nature in the presence of two witnesses.

and a link extended across the hanger and DAVID W. MARTIN. unitedpiv'otally at its ends with the lower Witnesses:

end of'the lever and with the rear end of the J. A. NICE,

share-holder. B. S. DoRsEY, Jr.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

